Seiko Cal. 4581 - 777

The 4581-777 is a sought-after Hand-Winding piece from Seiko's golden era. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-adaa9fb5565b]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Champagne

Jewels

24j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1971

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