Seiko Cal. 6615 - 633

This Spring Drive model from 1988 features a 46mm Hardlex-Coated Steel case. Powered by the 6615 caliber with 26j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-d794f727d756]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

120m

Dial Color

White

Jewels

26j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1988

Related Models

• Seiko 6648-639
• Seiko 6118-113
• Seiko 0723-696
• Seiko 5276-934
• Seiko 6294-840
• Seiko 6682-144
• Seiko 4410-420
• Seiko 6378-674
• Seiko 6155-141
• Seiko 7087-575
• Seiko 0720-920
• Seiko 7053-567