Seiko Cal. 3876 - 420

Released in 1986, the Cal. 3876 with design code 420 was part of Seiko's domestic market collection. Powered by the 3876 caliber with 31j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-61a60edc4df3]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1986

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