Seiko Cal. 6640 - 251

This Solar model from 1993 features a 41mm Titanium case. With its 20mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-cbc7323fdf47]

Also known as: Panda, Navigator

Specifications

Movement

Solar

Case Material

Titanium

Case Width

41mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1993

Related Models

• Seiko 6696-105
• Seiko 5654-124
• Seiko 6388-190
• Seiko 0751-530
• Seiko 0783-770
• Seiko 6167-112
• Seiko 4432-240
• Seiko 0741-900
• Seiko 6250-275
• Seiko 6239-245
• Seiko 4467-297
• Seiko 7130-932