Seiko Cal. 5278 - 140

This Hand-Winding model from 1966 features a 38mm Hardlex-Coated Steel case. Powered by the 5278 caliber with 30j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-9ba85a957db1]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1966

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