Seiko Cal. 5646 - 311

This Hand-Winding model from 1999 features a 34mm Stainless Steel case. It features a Black dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-21e146c031d7]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1999

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