Seiko Cal. 5645 - 811

This Spring Drive model from 1987 features a 37mm PVD Black case. Powered by the 5645 caliber with 26j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-e994018bfab6]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Green

Jewels

26j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1987

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