Seiko Cal. 6378 - 994

This Spring Drive model from 1978 features a 40mm Stainless Steel case. Powered by the 6378 caliber with 35j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-ed3ee47f3b71]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1978

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