Seiko Cal. 6278 - 266

The Seiko 6278-266 represents an important milestone in Seiko's 1974 lineup. Powered by the 6278 caliber with 25j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-77b667c9fbb6]

Also known as: Sea Horse, Crown

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1974

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