Seiko Cal. 6681 - 820

The 6681-820 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6681 caliber with 24j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-0277d961180d]

Also known as: Bullhead, Emperor

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Cream

Jewels

24j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1968

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