Seiko Cal. 3864 - 527

The 3864-527 is a sought-after Solar piece from Seiko's golden era. Powered by the 3864 caliber with 28j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-81e1ec93bf01]

Also known as: Monster, Sumo

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

43mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1988

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