Seiko Cal. 4577 - 370

The 4577-370 is a sought-after Spring Drive piece from Seiko's golden era. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-4b2c47f2cf1b]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Cream

Jewels

18j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1981

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