Seiko Cal. 4445 - 644

The 4445-644 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-383e30350ade]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1969

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