Seiko Cal. 6663 - 909

The Seiko 6663-909 represents an important milestone in Seiko's 1984 lineup. Powered by the 6663 caliber with 31j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-e61f2757aee7]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1984

Related Models

• Seiko 6152-273
• Seiko 5681-162
• Seiko 6630-677
• Seiko 3824-823
• Seiko 4428-151
• Seiko 7099-294
• Seiko 7044-310
• Seiko 7028-867
• Seiko 6622-768
• Seiko 3890-641
• Seiko 7144-747
• Seiko 5217-464