Seiko Cal. 0728 - 649

The Seiko 0728-649 represents an important milestone in Seiko's 1989 lineup. Powered by the 0728 caliber with 20j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-0b5149cec0f4]

Also known as: Tuna, Sea Horse

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1989

Related Models

• Seiko 6183-793
• Seiko 7053-416
• Seiko 4435-385
• Seiko 6610-295
• Seiko 6358-377
• Seiko 6286-253
• Seiko 4429-419
• Seiko 0762-777
• Seiko 6672-440
• Seiko 6135-708
• Seiko 6361-286
• Seiko 5271-877