Seiko Cal. 5639 - 444

This Solar model from 1974 features a 40mm PVD Black case. It features a Green dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-e4ed5f74e7a2]

Also known as: Golden Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1974

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