Seiko Cal. 4581 - 972

The 4581-972 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4581 caliber with 23j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-c10c3641b44e]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

34mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1997

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