Seiko Cal. 7140 - 561

The Seiko 7140-561 represents an important milestone in Seiko's 1980 lineup. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-49d7146ab5fd]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1980

Related Models

• Seiko 6647-740
• Seiko 0774-855
• Seiko 5261-260
• Seiko 0731-249
• Seiko 6287-870
• Seiko 4511-637
• Seiko 0767-757
• Seiko 6250-231
• Seiko 7024-438
• Seiko 6391-582
• Seiko 7188-402
• Seiko 4474-210