Seiko Cal. 5630 - 640

This Hand-Winding model from 1966 features a 43mm Titanium case. It features a Navy dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-e7bc9812d6a2]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

43mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1966

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