Longines Ultra Chron 'Diver' Ref. 7970-1 steel vintage wristwatch, sold in 1972
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v001
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v09
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v06
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v002
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v07
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v05
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v03
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v08
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v11
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v12
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v04
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v02
Longines Ultra Chron 'Diver' Ref. 7970-1 steel vintage wristwatch, sold in 1972
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v001
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v09
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v06
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v002
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v07
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v05
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v03
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v08
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v11
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v12
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v04
longines-ultra-chron-ref-7970-1-steel-vintage-wristwatch-sold-in-1972-wwlucda-v02

Longines Ultra Chron ‘Diver’ Ref. 7970-1 steel vintage wristwatch, sold in 1972

A superb stainless steel diver’s style wristwatch with uni-directional rotating bezel and black dial

Perhaps one of the least well-known of Longines’ vintage sports watches, this is an unusual variant from Longines’ high beat Ultra-Chron line. A fantastic looking watch that is in outstanding condition, this watch is complete with its original Longines guarantee booklet and presentation box. The black gloss dial is wonderfully preserved with a high sheen and vibrant colours. The uni-directional bezel has an acrylic insert with dark orange graduations for minutes and luminescent markers at 60/12, 15, 30 and 45. Designed to measure time elapsed, the bezel can be rotated to align with the orange minute hand. Once aligned, the orange hand can then be used to read minutes elapsed on the bezel. This was originally designed as a diver’s watch – the bezel’s feature allowing a diver to keep track of their time underwater; the uni-directional nature of the bezel meant that it could not be ‘knocked’ backwards which might otherwise endanger the user by then displaying a shorter dive time. Please note that, as a vintage watch, this watch should no longer be considered waterproof. 

This watch has clearly been stored for much of its life, showing signs of light use only. The luminescent markers both the dial and bezel remain wonderfully fresh, the case and its acrylic insert retain excellent definition and the movement is exceptionally crisp.

The original Longines guarantee booklet notes that this watch was originally sold in Cardiff in 1972. We have fitted this watch with a silicone rubber strap.

[video_lightbox_youtube video_id="1aKEARk4ZZY&rel=false" width="640" height="480" anchor="https://www.blackbough.co.uk/wp-content/uploads/video-play.png"]


Technical details

[M] Longines calibre 431 automatic movement, lever escapement, 17 jewels, mono-metallic balance, 36,000 BPH, Kif shock absorber [D] black gloss dial, white/black hour markers, the numerals at 3, 6 and 9 o’clock with luminescent highlights, outer white track for minutes/seconds, framed aperture for date, luminescent hands, orange minute hand, chromed hour hand and centre seconds [C] stainless steel cushion form case with polished and satin finishes, rotating bezel with acrylic insert calibrated with dark orange minute markers and luminescent Arabic and triangular indications at 12/60, 15, 30 and 45, Longines crown, screw-down case back detailed with the Longines Ultra-Chron medallion [S] case, dial, movement and crown signed

Measurements

Width excluding winding crown: 41mm
Length including lugs: 43mm
Depth to centre of crystal: 11mm
Strap width/lug gauge: 22mm

This watch has been fully serviced and overhauled and is sold with a one year guarantee and detailed Black Bough certificate.

SKU: WWLUCDA Categories: , Brand:

Description

Longines Ultra Chron ‘Diver’ Ref. 7970-1 steel vintage wristwatch, sold in 1972
A superb stainless steel diver’s style wristwatch with uni-directional rotating bezel and black dial

Perhaps one of the least well-known of Longines’ vintage sports watches, this is an unusual variant from Longines’ high beat Ultra-Chron line. A fantastic looking watch that is in outstanding condition, this watch is complete with its original Longines guarantee booklet and presentation box. The black gloss dial is wonderfully preserved with a high sheen and vibrant colours. The uni-directional bezel has an acrylic insert with dark orange graduations for minutes and luminescent markers at 60/12, 15, 30 and 45. Designed to measure time elapsed, the bezel can be rotated to align with the orange minute hand. Once aligned, the orange hand can then be used to read minutes elapsed on the bezel. This was originally designed as a diver’s watch – the bezel’s feature allowing a diver to keep track of their time underwater; the uni-directional nature of the bezel meant that it could not be ‘knocked’ backwards which might otherwise endanger the user by then displaying a shorter dive time. Please note that, as a vintage watch, this watch should no longer be considered waterproof. 

This watch has clearly been stored for much of its life, showing signs of light use only. The luminescent markers both the dial and bezel remain wonderfully fresh, the case and its acrylic insert retain excellent definition and the movement is exceptionally crisp.

The original Longines guarantee booklet notes that this watch was originally sold in Cardiff in 1972. We have fitted this watch with a silicone rubber strap.

[video_lightbox_youtube video_id="1aKEARk4ZZY&rel=false" width="640" height="480" anchor="https://www.blackbough.co.uk/wp-content/uploads/video-play.png"]


Technical details

[M] Longines calibre 431 automatic movement, lever escapement, 17 jewels, mono-metallic balance, 36,000 BPH, Kif shock absorber [D] black gloss dial, white/black hour markers, the numerals at 3, 6 and 9 o’clock with luminescent highlights, outer white track for minutes/seconds, framed aperture for date, luminescent hands, orange minute hand, chromed hour hand and centre seconds [C] stainless steel cushion form case with polished and satin finishes, rotating bezel with acrylic insert calibrated with dark orange minute markers and luminescent Arabic and triangular indications at 12/60, 15, 30 and 45, Longines crown, screw-down case back detailed with the Longines Ultra-Chron medallion [S] case, dial, movement and crown signed

Measurements

Width excluding winding crown: 41mm
Length including lugs: 43mm
Depth to centre of crystal: 11mm
Strap width/lug gauge: 22mm

This watch has been fully serviced and overhauled and is sold with a one year guarantee and detailed Black Bough certificate.

£1,575.00 [Sold]

Longines Ultra Chron ‘Diver’ Ref. 7970-1 steel vintage wristwatch, sold in 1972