Seiko Cal. 4412 - 231

The Seiko 4412-231 represents an important milestone in Seiko's 1998 lineup. Powered by the 4412 caliber with 22j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-da22ff8b6e20]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

60m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1998

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