Seiko Cal. 6378 - 306

The Seiko 6378-306 represents an important milestone in Seiko's 1981 lineup. Powered by the 6378 caliber with 36j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-83207de1fb32]

Also known as: Crown

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

36j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1981

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