Seiko Cal. 6665 - 351

The Seiko 6665-351 represents an important milestone in Seiko's 1986 lineup. Powered by the 6665 caliber with 35j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-be8339fea472]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1986

Related Models

• Seiko 6152-756
• Seiko 4565-961
• Seiko 7164-534
• Seiko 7045-550
• Seiko 4439-446
• Seiko 5687-276
• Seiko 6174-768
• Seiko 6159-314
• Seiko 4543-725
• Seiko 6261-446
• Seiko 5252-830
• Seiko 3829-298