Seiko Cal. 6378 - 577

The 6378-577 is a sought-after Kinetic piece from Seiko's golden era. With its 21mm lug width and 12.8mm profile, it sits comfortably on most wrists. [seikata-wm-03c10be1eb0b]

Also known as: Helmet, UFO

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Champagne

Jewels

30j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1990

Related Models

• Seiko 6382-295
• Seiko 5615-651
• Seiko 6133-345
• Seiko 6611-635
• Seiko 6274-375
• Seiko 5645-572
• Seiko 6688-498
• Seiko 6699-461
• Seiko 6130-246
• Seiko 6341-992
• Seiko 6330-704
• Seiko 6326-927