Seiko Cal. 6644 - 963

Seiko 6644-963

The Seiko 6644-963 represents an important milestone in Seiko's 1965 lineup. It features a Black dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-5b38d0c44497]

Also known as: Turtle

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
9.4mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
50m
Dial Color
Black
Jewels
34j
Frequency
36,000 bph
Power Reserve
70 hours
Year
1965

Related Models

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