Seiko Cal. 6643 - 852

The 6643-852 is a sought-after Hand-Winding piece from Seiko's golden era. It features a White dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-4450def7039b]

Also known as: Flighty

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

15.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1970

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