Seiko Cal. 6645 - 143

The 6645-143 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6645 caliber with 25j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-4df7234ddd70]

Also known as: Panda

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

White

Jewels

25j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1971

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