Seiko Cal. 3877 - 300

This Automatic model from 1966 features a 35mm Two-Tone case. Powered by the 3877 caliber with 34j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-d7634740ae9d]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Burgundy

Jewels

34j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1966

Related Models

• Seiko 6619-186
• Seiko 6631-804
• Seiko 3843-828
• Seiko 6698-870
• Seiko 6649-105
• Seiko 4520-657
• Seiko 7013-434
• Seiko 0756-793
• Seiko 6318-197
• Seiko 6374-746
• Seiko 6386-679
• Seiko 6678-857