Seiko Cal. 7139 - 564

This Hand-Winding model from 1983 features a 40mm Titanium case. It features a Black dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-c1ca86b37cf3]

Also known as: Tuna, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1983

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