Seiko Cal. 3872 - 733

The 3872-733 is a sought-after Solar piece from Seiko's golden era. Powered by the 3872 caliber with 36j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-fdfebe161de5]

Also known as: Rally, Crown

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

15.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

White

Jewels

36j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1976

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