Seiko Cal. 4478 - 154

This Hand-Winding model from 1988 features a 38mm Stainless Steel case. Powered by the 4478 caliber with 19j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-14afc5c0844a]

Also known as: Tuna, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1988

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