Seiko Cal. 6278 - 663

The Seiko 6278-663 represents an important milestone in Seiko's 1985 lineup. Powered by the 6278 caliber with 26j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-eb25cfdb8ef3]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Cream

Jewels

26j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1985

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