Seiko Cal. 6337 - 225

The Seiko 6337-225 represents an important milestone in Seiko's 1977 lineup. It features a Black dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-c8085c1012c1]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

18j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1977

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