Seiko Cal. 7140 - 539

The Seiko 7140-539 represents an important milestone in Seiko's 1995 lineup. Powered by the 7140 caliber with 32j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-48123347ca6b]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

32j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1995

Related Models

• Seiko 0755-582
• Seiko 5665-218
• Seiko 5244-347
• Seiko 5227-603
• Seiko 7056-517
• Seiko 3829-499
• Seiko 7017-540
• Seiko 0766-997
• Seiko 6316-427
• Seiko 6392-249
• Seiko 4465-164
• Seiko 3868-728