Seiko Cal. 4559 - 631

This Hand-Winding model from 1978 features a 45mm Titanium case. With its 20mm lug width and 8.3mm profile, it sits comfortably on most wrists. [seikata-wm-6bee7bb8e6d7]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

8.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Cream

Jewels

36j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1978

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