Seiko Cal. 5681 - 378

The 5681-378 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5681 caliber with 35j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-3313980bc943]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1995

Related Models

• Seiko 5250-144
• Seiko 6257-697
• Seiko 6184-711
• Seiko 6172-903
• Seiko 6199-976
• Seiko 6363-943
• Seiko 0784-185
• Seiko 7147-142
• Seiko 4498-714
• Seiko 3860-158
• Seiko 6337-125
• Seiko 6263-703