Seiko Cal. 4457 - 740

Released in 1966, the Cal. 4457 with design code 740 was part of Seiko's domestic market collection. Powered by the 4457 caliber with 21j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-4e270fecaa9b]

Also known as: UFO, Emperor

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

43mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1966

Related Models

• Seiko 5285-221
• Seiko 7049-732
• Seiko 5619-523
• Seiko 5671-129
• Seiko 7167-372
• Seiko 4476-858
• Seiko 6322-984
• Seiko 3816-657
• Seiko 3889-221
• Seiko 3866-725
• Seiko 6122-261
• Seiko 4514-685