Seiko Cal. 5640 - 159

This Hand-Winding model from 1966 features a 45mm Titanium case. It features a White dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-348f9712f0c3]

Also known as: Turtle, Arnie

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

White

Jewels

33j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1966

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