Seiko Cal. 4430 - 546

The 4430-546 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4430 caliber with 23j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-30a5c422f2c7]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

23j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1967

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