Seiko Cal. 3871 - 251

Released in 1992, the Cal. 3871 with design code 251 was part of Seiko's domestic market collection. The Fixed bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-6972901ba3aa]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

8.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

White

Jewels

34j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1992

Related Models

• Seiko 7140-521
• Seiko 6336-847
• Seiko 3871-461
• Seiko 6180-854
• Seiko 7056-678
• Seiko 4450-175
• Seiko 4510-491
• Seiko 6337-943
• Seiko 7011-123
• Seiko 6657-316
• Seiko 5612-705
• Seiko 4429-112