Seiko Cal. 6663 - 488

The Seiko 6663-488 represents an important milestone in Seiko's 1968 lineup. Powered by the 6663 caliber with 27j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-da1ff107bbe4]

Also known as: Tuna, Bullhead

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

27j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1968

Related Models

• Seiko 7091-273
• Seiko 7049-672
• Seiko 6342-210
• Seiko 6250-671
• Seiko 6225-457
• Seiko 5260-740
• Seiko 7188-576
• Seiko 6259-154
• Seiko 7125-577
• Seiko 7148-215
• Seiko 5295-152
• Seiko 0736-336