Seiko Cal. 4571 - 131

This Hand-Winding model from 1973 features a 37mm Titanium case. With its 21mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-3ed7dc88e8e4]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1973

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