Seiko Cal. 0747 - 310

This Spring Drive model from 1996 features a 44mm Stainless Steel case. With its 18mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-1b8b60ac2a22]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1996

Related Models

• Seiko 6237-226
• Seiko 4590-664
• Seiko 6695-625
• Seiko 0714-158
• Seiko 5296-241
• Seiko 6245-748
• Seiko 0733-979
• Seiko 4422-438
• Seiko 6647-294
• Seiko 7037-989
• Seiko 6663-639
• Seiko 7177-141