Seiko Cal. 6613 - 326

This Spring Drive model from 1999 features a 36mm Stainless Steel case. With its 18mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-9bedadefc8b3]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

White

Jewels

31j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1999

Related Models

• Seiko 5664-874
• Seiko 6389-990
• Seiko 6640-122
• Seiko 4486-555
• Seiko 5640-462
• Seiko 4436-670
• Seiko 0739-501
• Seiko 6142-765
• Seiko 7132-882
• Seiko 7018-941
• Seiko 5659-462
• Seiko 5634-931