Seiko Cal. 6646 - 321

The 6646-321 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6646 caliber with 25j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-4df9ce0ec7b2]

Also known as: Rally

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

White

Jewels

25j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1986

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