Seiko Cal. 6378 - 732

This Hand-Winding model from 1983 features a 44mm Two-Tone case. Powered by the 6378 caliber with 23j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-6f1c6029015c]

Also known as: Golden Tuna, Arnie

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

White

Jewels

23j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1983

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