Seiko Cal. 7148 - 677

This Hand-Winding model from 1978 features a 38mm Gold-Plated case. Powered by the 7148 caliber with 25j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-f40b205b9dfb]

Also known as: Navigator

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

15.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Silver

Jewels

25j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1978

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