Seiko Cal. 6288 - 691

The Seiko 6288-691 represents an important milestone in Seiko's 1979 lineup. Powered by the 6288 caliber with 25j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-76150debdc7e]

Also known as: Monster, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

120m

Dial Color

Cream

Jewels

25j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1979

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