Seiko Cal. 6378 - 310

The 6378-310 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6378 caliber with 22j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-af583be9d345]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

White

Jewels

22j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1992

Related Models

• Seiko 4587-706
• Seiko 5654-847
• Seiko 5285-175
• Seiko 6383-796
• Seiko 4431-802
• Seiko 6289-778
• Seiko 7042-969
• Seiko 6132-631
• Seiko 7061-903
• Seiko 5255-564
• Seiko 5283-821
• Seiko 4458-330