Seiko Cal. 5631 - 693

The Seiko 5631-693 represents an important milestone in Seiko's 1992 lineup. The Inner Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-c04ea95efa6e]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1992

Related Models

• Seiko 6336-454
• Seiko 3837-491
• Seiko 4491-977
• Seiko 6391-326
• Seiko 3848-361
• Seiko 5246-922
• Seiko 5697-329
• Seiko 6284-512
• Seiko 4565-327
• Seiko 7028-583
• Seiko 6192-486
• Seiko 7036-243