Seiko Cal. 5684 - 666

The Seiko 5684-666 represents an important milestone in Seiko's 1994 lineup. With its 22mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-465cd270e042]

Also known as: Helmet, Emperor

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

White

Jewels

29j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1994

Related Models

• Seiko 5686-649
• Seiko 5243-320
• Seiko 6230-594
• Seiko 3873-185
• Seiko 6138-509
• Seiko 6684-228
• Seiko 5258-244
• Seiko 6172-784
• Seiko 6659-596
• Seiko 6618-971
• Seiko 7158-577
• Seiko 4437-880