Seiko Cal. 3871 - 880

Released in 1971, the Cal. 3871 with design code 880 was part of Seiko's domestic market collection. Powered by the 3871 caliber with 28j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-51cccbaa78ed]

Also known as: UFO, Sportsmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

8.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1971

Related Models

• Seiko 6313-217
• Seiko 6621-771
• Seiko 3859-941
• Seiko 6380-750
• Seiko 4433-818
• Seiko 5271-986
• Seiko 7129-255
• Seiko 6330-413
• Seiko 7027-641
• Seiko 6237-117
• Seiko 4418-678
• Seiko 5610-697