Seiko Cal. 6378 - 946

The Seiko 6378-946 represents an important milestone in Seiko's 1966 lineup. With its 21mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-4179140e3bc3]

Also known as: UFO

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1966

Related Models

• Seiko 0734-789
• Seiko 5685-962
• Seiko 7156-899
• Seiko 4472-745
• Seiko 6363-301
• Seiko 4569-615
• Seiko 4590-585
• Seiko 7156-861
• Seiko 7170-118
• Seiko 4537-451
• Seiko 6138-570
• Seiko 6694-725