Seiko Cal. 6645 - 257

The 6645-257 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6645 caliber with 32j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-30d1830112d4]

Also known as: Panda

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1968

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