Seiko Cal. 5261 - 321

This Hand-Winding model from 1966 features a 42mm Two-Tone case. The Fixed bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-ca55bbeb7f08]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

11.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Cream

Jewels

19j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1966

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