Seiko Cal. 3891 - 872

The 3891-872 is a sought-after Solar piece from Seiko's golden era. Powered by the 3891 caliber with 31j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-703acff5b1f2]

Also known as: Monster

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

White

Jewels

31j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1967

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