Seiko Cal. 3881 - 550

Released in 1977, the Cal. 3881 with design code 550 was part of Seiko's domestic market collection. The Fixed bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-ee237bf2d666]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1977

Related Models

• Seiko 4567-588
• Seiko 7049-334
• Seiko 6383-734
• Seiko 7010-208
• Seiko 7139-273
• Seiko 4482-702
• Seiko 3887-486
• Seiko 5689-357
• Seiko 7164-608
• Seiko 6347-893
• Seiko 4586-148
• Seiko 4572-682