Seiko Cal. 6231 - 344

This Hand-Winding model from 1995 features a 35mm Hardlex-Coated Steel case. It features a Navy dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-bc9bd6bdae59]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

32j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1995

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