Seiko Cal. 3877 - 375

The 3877-375 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3877 caliber with 20j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-f2a47d85cdfe]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1971

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