Seiko Cal. 6663 - 730

This Spring Drive model from 1987 features a 38mm Titanium case. Powered by the 6663 caliber with 22j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-b4ff66c8d18d]

Also known as: Turtle, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Navy

Jewels

22j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1987

Related Models

• Seiko 5267-325
• Seiko 5251-301
• Seiko 6631-473
• Seiko 4599-794
• Seiko 4586-536
• Seiko 6161-167
• Seiko 5223-925
• Seiko 6170-699
• Seiko 6176-925
• Seiko 4585-538
• Seiko 5629-777
• Seiko 6290-992