Seiko Cal. 5657 - 156

This Solar model from 1981 features a 44mm Titanium case. It features a Navy dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-ef097b050124]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

44mm

Case Thickness

13.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1981

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