Seiko Cal. 4580 - 992

The 4580-992 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4580 caliber with 24j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-f6cbce73ef82]

Also known as: Tuna, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1975

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