Seiko Cal. 5271 - 666

The Seiko 5271-666 represents an important milestone in Seiko's 1997 lineup. Powered by the 5271 caliber with 34j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-d4915f446b9d]

Also known as: Tuna, Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1997

Related Models

• Seiko 5617-454
• Seiko 6337-737
• Seiko 6690-546
• Seiko 0767-405
• Seiko 5661-976
• Seiko 7023-326
• Seiko 7027-862
• Seiko 0768-965
• Seiko 5671-450
• Seiko 4493-602
• Seiko 0771-408
• Seiko 6242-499