Seiko Cal. 4577 - 138

The 4577-138 is a sought-after Spring Drive piece from Seiko's golden era. With its 19mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-1ba4147240c1]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

8.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Green

Jewels

27j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1975

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