Seiko Cal. 5642 - 291

The Seiko 5642-291 represents an important milestone in Seiko's 1976 lineup. It features a Silver dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-fae6f053aa6d]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Silver

Jewels

24j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1976

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