Seiko Cal. 4550 - 401

The 4550-401 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Silver dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-d9bbdf860f2e]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

43mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

60m

Dial Color

Silver

Jewels

25j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1972

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