Seiko Cal. 6648 - 540

Seiko 6648-540

The 6648-540 is a sought-after Solar piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-0f193b6116ac]

Also known as: Turtle, Monster

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
38mm
Case Thickness
14.7mm
Lug Width
19mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
80m
Dial Color
Navy
Jewels
25j
Frequency
21,600 bph
Power Reserve
37 hours
Year
1977

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