Seiko Cal. 4577 - 541

This Solar model from 1972 features a 44mm PVD Black case. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-2a5aff8ad3f9]

Also known as: Monster, Sportsmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

44mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1972

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