Seiko Cal. 7181 - 736

This Automatic model from 1998 features a 38mm Stainless Steel case. Powered by the 7181 caliber with 27j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-8c2eba1a1178]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1998

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