Seiko Cal. 6645 - 372

The 6645-372 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Silver dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-cb4c2d8b4f5a]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

32j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1969

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