Seiko Cal. 6178 - 722

The Seiko 6178-722 represents an important milestone in Seiko's 1977 lineup. Powered by the 6178 caliber with 20j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-f0208e4849a7]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

42mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Champagne

Jewels

20j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1977

Related Models

• Seiko 6650-632
• Seiko 5242-632
• Seiko 6353-322
• Seiko 6193-486
• Seiko 6652-628
• Seiko 3815-434
• Seiko 6611-216
• Seiko 7029-737
• Seiko 6217-611
• Seiko 4463-141
• Seiko 4437-893
• Seiko 5616-941