Seiko Cal. 6687 - 637

This Quartz model from 1991 features a 36mm Hardlex-Coated Steel case. Powered by the 6687 caliber with 24j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-bb92374c1c72]

Also known as: Rally, Bellmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

White

Jewels

24j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1991

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