Seiko Cal. 4496 - 721

The 4496-721 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4496 caliber with 25j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-2e7985230de5]

Also known as: Sumo, Crown

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1969

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