Seiko Cal. 0720 - 510

This Automatic model from 1969 features a 42mm Two-Tone case. Powered by the 0720 caliber with 25j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-ff5393fd1a74]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1969

Related Models

• Seiko 6358-424
• Seiko 4513-722
• Seiko 6344-691
• Seiko 0737-486
• Seiko 6631-604
• Seiko 0753-749
• Seiko 7169-829
• Seiko 3815-837
• Seiko 5680-154
• Seiko 5697-575
• Seiko 5656-836
• Seiko 6322-172