Seiko Cal. 4557 - 766

The Seiko 4557-766 represents an important milestone in Seiko's 1988 lineup. Powered by the 4557 caliber with 20j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-6bcd4abccc57]

Also known as: Golden Tuna, Flighty

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1988

Related Models

• Seiko 6310-576
• Seiko 5288-473
• Seiko 4426-789
• Seiko 7123-233
• Seiko 4563-117
• Seiko 6687-949
• Seiko 7036-651
• Seiko 4552-806
• Seiko 3889-634
• Seiko 5693-139
• Seiko 6381-744
• Seiko 5626-593