Seiko Cal. 5610 - 612

This Hand-Winding model from 1966 features a 44mm Gold-Plated case. It features a Navy dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-91d21968d5f1]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1966

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