Seiko Cal. 0726 - 638

This Hand-Winding model from 1981 features a 40mm Hardlex-Coated Steel case. With its 20mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-cc35993addd4]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1981

Related Models

• Seiko 5274-249
• Seiko 6331-390
• Seiko 4426-943
• Seiko 6331-104
• Seiko 3892-498
• Seiko 6147-500
• Seiko 4521-342
• Seiko 5210-700
• Seiko 6619-446
• Seiko 6669-138
• Seiko 6668-963
• Seiko 4560-908