Seiko Cal. 6616 - 636

This Automatic model from 1998 features a 41mm Stainless Steel case. With its 21mm lug width and 15.3mm profile, it sits comfortably on most wrists. [seikata-wm-aba13b73f981]

Also known as: Sumo, Bellmatic

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

White

Jewels

17j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1998

Related Models

• Seiko 5683-694
• Seiko 5613-113
• Seiko 6136-888
• Seiko 5652-253
• Seiko 5692-333
• Seiko 3870-384
• Seiko 6133-297
• Seiko 0770-931
• Seiko 7015-112
• Seiko 0740-601
• Seiko 6660-649
• Seiko 4489-258