Seiko Cal. 5631 - 625

This Solar model from 1975 features a 39mm PVD Black case. It features a Green dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-f705079fcfbb]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

60m

Dial Color

Green

Jewels

32j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1975

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