Seiko Cal. 6657 - 511

The Seiko 6657-511 represents an important milestone in Seiko's 1978 lineup. Powered by the 6657 caliber with 30j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-4d398453d9b4]

Also known as: Samurai, Goldfeather

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

9.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Burgundy

Jewels

30j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1978

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