Seiko Cal. 5655 - 374

This Automatic model from 1986 features a 42mm Titanium case. Powered by the 5655 caliber with 22j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-68df06a899f6]

Also known as: Tuna, Helmet

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

42mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1986

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