Seiko Cal. 4455 - 640

The 4455-640 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4455 caliber with 25j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-53ec39df29fc]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

14.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1986

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