Seiko Cal. 3864 - 781

The Seiko 3864-781 represents an important milestone in Seiko's 1967 lineup. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-dcc59bd3ef0e]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

13.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Cream

Jewels

20j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1967

Related Models

• Seiko 7055-944
• Seiko 6635-886
• Seiko 7088-461
• Seiko 0731-866
• Seiko 6212-801
• Seiko 0737-574
• Seiko 3892-692
• Seiko 5287-852
• Seiko 4426-311
• Seiko 4447-163
• Seiko 5648-946
• Seiko 6265-639