2.0150 *XL* JAZ Dual Bezel GMT Diver, 1970’s


Large and complicated, 1970’s French JAZ diving watch. Compressor-style dual crown and dual GMT bezel, with multi-coloured red, white and blue accents on bezel and dial. All in great cosmetic and technical condition, works perfectly despite its 50 years of age, and still passes a 3 ATM waterproof test! A perfect original retro gadget fully prepared for daily wear. The watch has undergone full servicing with disassembly in our Bristol workshop. Comes with a 12-month warranty and high quality 20mm brown genuine leather strap.

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SKU: 20150 Category: Tags: , , ,

Key Features

1970’s super eye-catching oversized 42mm JAZ diver watch, with compressor-style dual crown and dual GMT bezel. The inner white/red bezel is for diving duration control, it can be adjusted by the upper crown. The rotating outer blue metal bezel is for GMT timezone time reading.

The watch is in great cosmetic and technical condition. Although the movement is economy class, it has a Swiss lever escapement, so it works perfectly despite its 50 years of age, and still passes a 3 ATM waterproof test!

No one could miss noticing this chunky, stylish timepiece. It is not merely a photogenic accessory, but also a really pleasant timepiece for wearing on the wrist. A perfect original retro gadget fully prepared by our Bristol watchmakers for daily wear.

About JAZ 

The Compagnie Industrielle de Mécanique Horlogère was founded in 1919 by Ivan Benel (1881-1970) in Paris. The company was later renamed Jaz SA (société anonyme). In 1941, the famous ‘Jaz Bird’ logo was created. During the German occupation of France in WWII, the Jazz music genre was considerably frowned upon due to carrying pro-American influences. However, attempts to censor the spirit of jazz and its influences were thwarted through the use of images of the the “Jaseur” (waxwing in English) bird, a migratory bird about the size of a starling. The Jaz brand used this bird as its logo to symbolise its defiance, and for a number of decades their success was unstoppable.

Competition with the Japanese market began in 1983 with the popularisation of quartz watches in Europe. From 1988 onwards, JAZ became just another albeit ostensibly French sub-brand of Seiko (C.G.H). The Jaz brand and partnership was discontinued by Seiko in the late 1990’s.

Servicing and Guarantee

This timepiece has been serviced with full disassembly in our Bristol workshop. There is a 12-month guarantee, subject to the usage and care guidelines. New, genuine leather light brown strap with white thread detail.


Case and Strap

  • Original, tonneau style case with dual GMT aluminium bezel.
  • Chrome plated case.
  • Pan-shaped, acrylic crystal.
  • Stainless steel screw caseback with cool aqua diver emblem.
  • Compressor style dual crown.
  • Waterproof – 3 ATM tested and passed.
  • Thick, top-quality leather strap.


  • Width w/o crown 42 mm.
  • Width w/crown 44 mm.
  • Height 40.6 mm.
  • Thickness 12.8 mm.
  • Strap width 20 mm.

Dial and Hands

  • Original, matte black dial.
  • Applied, block style silver-tone indices with lume.
  • “JAZ – a ATM” signature below 12 position.
  • Rectangular date window over 3 position, with white border.
  • Silver-tone, ‘block’ style hands with lume.
  • Long, silver-tone centre seconds hand with lume ‘block’ tip.


  • French-made movement.
  • CRC 960 caliber.
  • Swiss lever escapement, 17 jewels.
  • Manual.
  • Shockproof – Antichoc S65.
  • Guilloché plates and bridges.
  • Basic finishing of wheels and screws.

Testing Results

  • Testing duration: 2 weeks cyclic test.
  • Average timekeeping range: 20-45 sec/day.

Servicing and Guarantee

  • Fully serviced with disassembly in our Bristol shop.
  • Mechanics in full working order.
  • 20mm brown leather strap with white thread detail.
  • 12-month warranty.
  • Guarantee Terms and Conditions. 

Links and Resources:

How it Looks Inside – A Full Disassembly of This Watch for Cleaning. 

CRC 960 Movement Specs.

About the JAZ Brand.

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Case material

Chrome plated

Dial tone




Size grade

42-45 mm

Year approx