Seiko Cal. 6378 - 159

The 6378-159 is a sought-after Hand-Winding piece from Seiko's golden era. The Fixed bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-ce70dfd5eae1]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Silver

Jewels

20j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1984

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