Seiko Cal. 3865 - 391

The Seiko 3865-391 represents an important milestone in Seiko's 1987 lineup. Powered by the 3865 caliber with 19j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-1705aa7dbc0e]

Also known as: Bullhead, Crown

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

14.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1987

Related Models

• Seiko 0751-881
• Seiko 3828-599
• Seiko 6381-997
• Seiko 3869-882
• Seiko 3814-769
• Seiko 4575-332
• Seiko 4482-728
• Seiko 6396-393
• Seiko 6280-372
• Seiko 6686-721
• Seiko 6138-703
• Seiko 5630-534