Seiko Cal. 0747 - 337

This Spring Drive model from 1993 features a 46mm Hardlex-Coated Steel case. The Coin-Edge bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-e68926ea5e82]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Silver

Jewels

23j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1993

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