Seiko Cal. 3866 - 348

The 3866-348 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3866 caliber with 33j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-46d7269e1764]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

13.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1966

Related Models

• Seiko 4441-766
• Seiko 6155-945
• Seiko 6145-795
• Seiko 6325-111
• Seiko 6651-869
• Seiko 6638-128
• Seiko 7162-195
• Seiko 5267-390
• Seiko 4466-697
• Seiko 4582-148
• Seiko 6663-498
• Seiko 3830-391