Seiko Cal. 6644 - 547

The Seiko 6644-547 represents an important milestone in Seiko's 1980 lineup. It features a Green dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-a4defc2f9644]

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Green

Jewels

26j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1980

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