Seiko Cal. 3877 - 101

The 3877-101 is a sought-after Spring Drive piece from Seiko's golden era. With its 19mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-1e5c8fff554a]

Also known as: Turtle, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

8.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1972

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