Seiko Cal. 6680 - 644

The 6680-644 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6680 caliber with 31j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-a9777dbb1ee8]

Also known as: Samurai, Silverwave

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1973

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