Seiko Cal. 4496 - 903

The 4496-903 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4496 caliber with 17j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-6e9aadb8be3b]

Also known as: Tuna, UFO

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Burgundy

Jewels

17j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1977

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