Seiko Cal. 6378 - 606

This Spring Drive model from 1986 features a 45mm Two-Tone case. Powered by the 6378 caliber with 29j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-92f01ccfeba8]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Green

Jewels

29j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1986

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