Seiko Cal. 4493 - 780

This Hand-Winding model from 1970 features a 46mm Two-Tone case. Powered by the 4493 caliber with 23j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-86d13600bc3b]

Also known as: Bullhead, Navigator

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1970

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