Seiko Cal. 0778 - 730

This Spring Drive model from 1988 features a 46mm Stainless Steel case. Powered by the 0778 caliber with 17j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-18df5f64c7e1]

Also known as: Helmet, Navigator

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

12.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Champagne

Jewels

17j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1988

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