Seiko Cal. 3842 - 721

The Seiko 3842-721 represents an important milestone in Seiko's 1982 lineup. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-e6ef21968f9b]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1982

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