Seiko Cal. 4576 - 592

This Hand-Winding model from 1983 features a 37mm PVD Black case. Powered by the 4576 caliber with 21j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-016ef760da85]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1983

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