Seiko Cal. 3831 - 251

Released in 1989, the Cal. 3831 with design code 251 was part of Seiko's domestic market collection. Powered by the 3831 caliber with 32j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-069922fbdcde]

Also known as: Bullhead, UFO

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

White

Jewels

32j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1989

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