Seiko Cal. 3899 - 727

The Seiko 3899-727 represents an important milestone in Seiko's 1973 lineup. Powered by the 3899 caliber with 26j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-cdead3a6e1a9]

Also known as: Panda, Baby Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

8.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1973

Related Models

• Seiko 6287-411
• Seiko 5623-295
• Seiko 4431-664
• Seiko 6154-761
• Seiko 5215-492
• Seiko 6234-161
• Seiko 7063-281
• Seiko 4558-164
• Seiko 5278-427
• Seiko 4471-126
• Seiko 4531-672
• Seiko 6633-892