Seiko Cal. 4577 - 391

Released in 1972, the Cal. 4577 with design code 391 was part of Seiko's domestic market collection. It features a White dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-1c646c39ef47]

Also known as: Rally

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1972

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