Seiko Cal. 6378 - 686

The 6378-686 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6378 caliber with 36j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-3582a0a85725]

Also known as: Goldfeather, Arnie

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Champagne

Jewels

36j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1967

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