Seiko Cal. 3887 - 384

The Seiko 3887-384 represents an important milestone in Seiko's 1965 lineup. Powered by the 3887 caliber with 35j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-8d9d4ccd3a5c]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1965

Related Models

• Seiko 4488-619
• Seiko 6333-688
• Seiko 0778-164
• Seiko 7017-828
• Seiko 0787-418
• Seiko 7066-358
• Seiko 5266-227
• Seiko 4531-526
• Seiko 6697-616
• Seiko 4411-255
• Seiko 6285-231
• Seiko 6111-469