Seiko Cal. 4581 - 438

The 4581-438 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4581 caliber with 22j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-df98a67b2117]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

90m

Dial Color

White

Jewels

22j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1974

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