Seiko Cal. 6140 - 564

This Hand-Winding model from 1975 features a 45mm Two-Tone case. Powered by the 6140 caliber with 29j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-1721d2e54b89]

Also known as: World Timer, Crown

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

Black

Jewels

29j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1975

Related Models

• Seiko 6321-835
• Seiko 6135-872
• Seiko 6299-400
• Seiko 6678-492
• Seiko 6331-168
• Seiko 5652-530
• Seiko 6143-994
• Seiko 7180-848
• Seiko 6183-141
• Seiko 6648-560
• Seiko 6349-791
• Seiko 6620-233