Seiko Cal. 5230 - 441

The Seiko 5230-441 represents an important milestone in Seiko's 1967 lineup. Powered by the 5230 caliber with 18j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-0a8516797b91]

Also known as: Sumo, Flighty

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

18j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1967

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