Seiko Cal. 7131 - 971

The Seiko 7131-971 represents an important milestone in Seiko's 1973 lineup. Powered by the 7131 caliber with 22j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-1b8f9b6ada2e]

Also known as: UFO, Crown

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

8.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Black

Jewels

22j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1973

Related Models

• Seiko 6292-971
• Seiko 5679-209
• Seiko 7115-247
• Seiko 3859-438
• Seiko 3862-215
• Seiko 5685-983
• Seiko 6141-872
• Seiko 0789-911
• Seiko 6192-701
• Seiko 5260-111
• Seiko 7164-185
• Seiko 6172-412