Seiko Cal. 6378 - 103

Released in 1996, the Cal. 6378 with design code 103 was part of Seiko's domestic market collection. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-14936e9ce3ae]

Also known as: Bullhead, UFO

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

White

Jewels

34j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1996

Related Models

• Seiko 5647-519
• Seiko 4487-496
• Seiko 6358-666
• Seiko 6140-282
• Seiko 7073-412
• Seiko 6276-502
• Seiko 6698-165
• Seiko 6253-631
• Seiko 6293-382
• Seiko 3851-599
• Seiko 5643-584
• Seiko 4563-762