Seiko Cal. 6378 - 863

This Spring Drive model from 1996 features a 41mm Stainless Steel case. Powered by the 6378 caliber with 17j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-4a3057ed3318]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

17j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1996

Related Models

• Seiko 6168-505
• Seiko 7161-725
• Seiko 3839-533
• Seiko 7164-829
• Seiko 0780-104
• Seiko 5690-765
• Seiko 6176-193
• Seiko 5681-719
• Seiko 7084-108
• Seiko 6327-922
• Seiko 6219-842
• Seiko 5267-798