Seiko Cal. 4437 - 741

The 4437-741 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4437 caliber with 26j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-9c8b5dd5e8cc]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

9.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Cream

Jewels

26j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1984

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