Seiko Cal. 3872 - 918

The 3872-918 is a sought-after Solar piece from Seiko's golden era. Powered by the 3872 caliber with 26j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-4030d9438d91]

Also known as: Sumo, World Timer

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

43mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

26j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1968

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