Seiko Cal. 6644 - 320

Seiko 6644-320

The 6644-320 is a sought-after Solar piece from Seiko's golden era. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-323ca9f64d87]

Also known as: Tuna

Specifications

Movement
Solar
Case Material
Titanium
Case Width
40mm
Case Thickness
10.8mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
30m
Dial Color
Blue Sunburst
Jewels
31j
Frequency
28,800 bph
Power Reserve
62 hours
Year
1999

Related Models

seikata-wm-323ca9f64d87