Seiko Cal. 5642 - 137

The 5642-137 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-dcbbcf30c808]

Also known as: UFO, World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

150m

Dial Color

Black

Jewels

33j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1978

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