Seiko Cal. 7145 - 278

This Spring Drive model from 1988 features a 45mm Hardlex-Coated Steel case. Powered by the 7145 caliber with 31j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-63f3ec850034]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

12.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1988

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