Seiko Cal. 4592 - 616

This Spring Drive model from 1978 features a 37mm Titanium case. Powered by the 4592 caliber with 32j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-9c52c116396a]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

8.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

110m

Dial Color

Green

Jewels

32j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1978

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