Seiko Cal. 6657 - 577

The 6657-577 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6657 caliber with 33j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-9451a511367e]

Also known as: Panda

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

33j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1999

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