Seiko Cal. 6646 - 680

The 6646-680 is a sought-after Hand-Winding piece from Seiko's golden era. The Fixed bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-e8454fa67bd7]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1991

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