Seiko Cal. 3894 - 903

The 3894-903 is a sought-after Spring Drive piece from Seiko's golden era. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-a6c4fd790cb5]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

White

Jewels

34j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1972

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