Seiko Cal. 3866 - 144

The 3866-144 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3866 caliber with 18j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-56ee49ab5f00]

Also known as: Rally, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

14.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Champagne

Jewels

18j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1975

Related Models

• Seiko 5682-276
• Seiko 6372-101
• Seiko 5654-530
• Seiko 6343-323
• Seiko 6270-777
• Seiko 3821-536
• Seiko 4557-935
• Seiko 6638-684
• Seiko 5210-252
• Seiko 7049-500
• Seiko 7180-395
• Seiko 6673-921