Seiko Cal. 6657 - 725

The 6657-725 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6657 caliber with 29j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-f52698273682]

Also known as: Panda, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

29j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1967

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