Seiko Cal. 6630 - 964

The 6630-964 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Silver dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-fcb316262461]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Silver

Jewels

32j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1993

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