Seiko Cal. 4510 - 437

The 4510-437 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4510 caliber with 28j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-feb2593ef1ee]

Also known as: Monster, World Timer

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

28j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1981

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