Seiko Cal. 3889 - 178

This Solar model from 1966 features a 45mm Titanium case. It features a Black dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-bce76d24d681]

Also known as: Sumo, Crown

Specifications

Movement

Solar

Case Material

Titanium

Case Width

45mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1966

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