Seiko Cal. 5668 - 123

The 5668-123 is a sought-after Solar piece from Seiko's golden era. Powered by the 5668 caliber with 29j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-d151875b8aa7]

Also known as: Monster, Sportsmatic

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

11.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1975

Related Models

• Seiko 7039-166
• Seiko 0729-756
• Seiko 6341-896
• Seiko 5233-443
• Seiko 7167-448
• Seiko 0729-203
• Seiko 6153-225
• Seiko 0789-197
• Seiko 6139-599
• Seiko 6171-214
• Seiko 5643-589
• Seiko 7134-962