Seiko Cal. 3871 - 193

The 3871-193 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3871 caliber with 30j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-ee0ce600a67a]

Also known as: World Timer, Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

White

Jewels

30j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1995

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