Seiko Cal. 4443 - 257

The Seiko 4443-257 represents an important milestone in Seiko's 1972 lineup. Powered by the 4443 caliber with 34j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-078636b7a203]

Also known as: Samurai

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1972

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