Seiko Cal. 6645 - 387

The 6645-387 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6645 caliber with 30j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-4544272d888d]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1970

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