Seiko Cal. 3863 - 284

The Seiko 3863-284 represents an important milestone in Seiko's 1985 lineup. With its 20mm lug width and 14.8mm profile, it sits comfortably on most wrists. [seikata-wm-658219a1ecbe]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

41mm

Case Thickness

14.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1985

Related Models

• Seiko 0796-757
• Seiko 4532-445
• Seiko 5649-556
• Seiko 6291-312
• Seiko 6113-505
• Seiko 6154-529
• Seiko 5689-733
• Seiko 7044-166
• Seiko 4492-162
• Seiko 5258-419
• Seiko 4487-937
• Seiko 3821-961