Seiko Cal. 5666 - 684

The 5666-684 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5666 caliber with 18j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-7a333ad95111]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Navy

Jewels

18j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1996

Related Models

• Seiko 0795-502
• Seiko 6158-420
• Seiko 3886-859
• Seiko 6249-731
• Seiko 6658-463
• Seiko 0760-682
• Seiko 6297-633
• Seiko 5219-518
• Seiko 0757-756
• Seiko 6225-701
• Seiko 4438-756
• Seiko 6317-874