Seiko Cal. 4486 - 766

The 4486-766 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4486 caliber with 23j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-da898a89badb]

Also known as: Sumo, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Burgundy

Jewels

23j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1974

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