Seiko Cal. 3861 - 161

This Automatic model from 1999 features a 34mm Two-Tone case. Powered by the 3861 caliber with 23j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-4d96b458f2c9]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1999

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