Seiko Cal. 5663 - 141

This Hand-Winding model from 1986 features a 40mm Stainless Steel case. Powered by the 5663 caliber with 18j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-2de5947ef912]

Also known as: Monster, Flighty

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Silver

Jewels

18j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1986

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