Seiko Cal. 4577 - 971

The 4577-971 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-fa6d9bb34c0b]

Also known as: UFO, Rally

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1973

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