Seiko Cal. 5613 - 661

This Solar model from 1976 features a 41mm PVD Black case. The Fixed bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-3a1bc88ef22f]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

41mm

Case Thickness

12.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

170m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1976

Related Models

• Seiko 5667-244
• Seiko 5216-683
• Seiko 4441-829
• Seiko 5246-168
• Seiko 6393-735
• Seiko 5633-215
• Seiko 0784-532
• Seiko 7099-443
• Seiko 7172-698
• Seiko 6642-550
• Seiko 6160-242
• Seiko 7168-517