Seiko Cal. 6644 - 388

The 6644-388 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-351a773d1a2f]

Also known as: Shogun, Emperor

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

34j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1974

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