Seiko Cal. 4430 - 837

Released in 1984, the Cal. 4430 with design code 837 was part of Seiko's domestic market collection. Powered by the 4430 caliber with 30j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-03425b6ef6fe]

Also known as: World Timer, Sea Horse

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

8.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1984

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