Seiko Cal. 5251 - 580

This Hand-Winding model from 1977 features a 39mm Titanium case. Powered by the 5251 caliber with 27j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-184cac6e106f]

Also known as: Turtle, Sumo

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1977

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