Seiko Cal. 4493 - 305

The 4493-305 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4493 caliber with 32j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-a8f6568f65b0]

Also known as: Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

White

Jewels

32j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1978

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