Seiko Cal. 4543 - 337

The Seiko 4543-337 represents an important milestone in Seiko's 1986 lineup. Powered by the 4543 caliber with 21j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-5be9293ac16d]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1986

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