Seiko Cal. 5631 - 988

This Kinetic model from 1991 features a 42mm Hardlex-Coated Steel case. Powered by the 5631 caliber with 24j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-e5418950c3d6]

Also known as: Pogue, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Green

Jewels

24j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1991

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