Seiko Cal. 5663 - 897

This Spring Drive model from 1977 features a 40mm Gold-Plated case. Powered by the 5663 caliber with 28j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-7f84420b7d48]

Also known as: Monster, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

15.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

Cream

Jewels

28j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1977

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