Seiko Cal. 4486 - 721

The 4486-721 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4486 caliber with 19j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-55893b592f22]

Also known as: Monster, World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Silver

Jewels

19j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1984

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