Seiko Cal. 7073 - 503

The Seiko 7073-503 represents an important milestone in Seiko's 1970 lineup. With its 18mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-844c20ec6554]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Black

Jewels

32j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1970

Related Models

• Seiko 3819-602
• Seiko 6629-506
• Seiko 6226-435
• Seiko 4433-705
• Seiko 3834-246
• Seiko 6159-462
• Seiko 6187-783
• Seiko 7016-390
• Seiko 6247-573
• Seiko 6375-105
• Seiko 4575-756
• Seiko 6348-609