Seiko Cal. 5661 - 944

This Spring Drive model from 1978 features a 34mm Stainless Steel case. It features a Navy dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-c818659409e8]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

11.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Navy

Jewels

26j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1978

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