Seiko Cal. 5628 - 931

This Kinetic model from 1970 features a 38mm Titanium case. With its 21mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-1876bd139f73]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

38mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Green

Jewels

22j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1970

Related Models

• Seiko 6363-963
• Seiko 6351-211
• Seiko 6195-506
• Seiko 3812-462
• Seiko 7095-876
• Seiko 5295-243
• Seiko 6683-191
• Seiko 5638-188
• Seiko 7139-585
• Seiko 6653-271
• Seiko 6383-410
• Seiko 6213-245