Seiko Cal. 6680 - 548

The Seiko 6680-548 represents an important milestone in Seiko's 1970 lineup. Powered by the 6680 caliber with 21j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-5abc147ab22b]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Cream

Jewels

21j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1970

Related Models

• Seiko 5252-576
• Seiko 6196-432
• Seiko 6682-353
• Seiko 7046-423
• Seiko 6192-275
• Seiko 3850-207
• Seiko 7019-248
• Seiko 6219-265
• Seiko 5663-102
• Seiko 4454-425
• Seiko 0720-570
• Seiko 7151-286