Seiko Cal. 4577 - 305

The 4577-305 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-ea9636bf8f30]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Black

Jewels

32j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1975

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