Seiko Cal. 7028 - 644

The Seiko 7028-644 represents an important milestone in Seiko's 1986 lineup. Powered by the 7028 caliber with 26j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-2f4b4d30a9d6]

Also known as: Rally, Sea Horse

Specifications

Movement

Solar

Case Material

Titanium

Case Width

46mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Black

Jewels

26j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1986

Related Models

• Seiko 0787-972
• Seiko 6395-483
• Seiko 6622-717
• Seiko 3877-164
• Seiko 0781-298
• Seiko 0711-109
• Seiko 5250-968
• Seiko 7051-390
• Seiko 5659-319
• Seiko 6245-966
• Seiko 0761-375
• Seiko 3874-191