Seiko Cal. 6140 - 750

The 6140-750 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6140 caliber with 23j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-15fc2144e3c4]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1973

Related Models

• Seiko 6264-997
• Seiko 7083-553
• Seiko 5256-453
• Seiko 4499-436
• Seiko 6691-729
• Seiko 6139-175
• Seiko 6161-211
• Seiko 4461-179
• Seiko 6341-627
• Seiko 6121-344
• Seiko 7115-861
• Seiko 7096-329