Seiko Cal. 5640 - 997

This Solar model from 1965 features a 45mm Titanium case. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-c09f2deca14f]

Also known as: Samurai

Specifications

Movement

Solar

Case Material

Titanium

Case Width

45mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

24j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1965

Related Models

• Seiko 3834-993
• Seiko 6613-105
• Seiko 5278-332
• Seiko 6629-408
• Seiko 7070-881
• Seiko 6297-340
• Seiko 6264-369
• Seiko 4534-372
• Seiko 4463-135
• Seiko 7071-315
• Seiko 3871-812
• Seiko 6296-466