Seiko Cal. 3873 - 646

The Seiko 3873-646 represents an important milestone in Seiko's 1969 lineup. Powered by the 3873 caliber with 27j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-6624bebc68a0]

Also known as: Monster

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

9.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Champagne

Jewels

27j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1969

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