Seiko Cal. 3891 - 285

This Hand-Winding model from 1970 features a 39mm Gold-Plated case. Powered by the 3891 caliber with 22j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-3a7d115f616e]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

50m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1970

Related Models

• Seiko 6250-454
• Seiko 6372-462
• Seiko 4518-788
• Seiko 5283-953
• Seiko 6361-465
• Seiko 0722-316
• Seiko 6277-940
• Seiko 7010-237
• Seiko 7095-569
• Seiko 6394-935
• Seiko 3836-610
• Seiko 4564-737