Seiko Cal. 5646 - 451

The 5646-451 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5646 caliber with 33j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-48fc9ff90491]

Also known as: Monster, Crown

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1965

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