Seiko Cal. 6660 - 400

The Seiko 6660-400 represents an important milestone in Seiko's 1984 lineup. It features a Cream dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-8e1afb0cc624]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

20j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1984

Related Models

• Seiko 6254-534
• Seiko 3857-309
• Seiko 5612-511
• Seiko 7189-532
• Seiko 6239-123
• Seiko 6260-298
• Seiko 0742-743
• Seiko 5615-761
• Seiko 6114-777
• Seiko 3893-937
• Seiko 6349-283
• Seiko 0731-629