Seiko Cal. 6687 - 324

This Hand-Winding model from 1988 features a 42mm Stainless Steel case. Powered by the 6687 caliber with 21j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-f19db524ef0d]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Champagne

Jewels

21j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1988

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