Seiko Cal. 3875 - 820

The 3875-820 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3875 caliber with 28j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-e55da245982a]

Also known as: World Timer, Crown

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

43mm

Case Thickness

8.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

120m

Dial Color

Silver

Jewels

28j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1978

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