Seiko Cal. 3871 - 407

Released in 1965, the Cal. 3871 with design code 407 was part of Seiko's domestic market collection. Powered by the 3871 caliber with 18j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-89b6c6184833]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

34mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1965

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