Seiko Cal. 7028 - 757

The 7028-757 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7028 caliber with 25j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-5ec9dcb374b9]

Also known as: Samurai, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1997

Related Models

• Seiko 0756-808
• Seiko 6646-240
• Seiko 4587-606
• Seiko 4554-832
• Seiko 6255-141
• Seiko 7187-165
• Seiko 4516-658
• Seiko 6180-815
• Seiko 7147-600
• Seiko 7143-125
• Seiko 5624-293
• Seiko 3833-254