Seiko Cal. 6645 - 691

Seiko 6645-691

The 6645-691 is a sought-after Solar piece from Seiko's golden era. It features a Cream dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-b6c58f70aaa2]

Also known as: Silverwave, Goldfeather

Specifications

Movement
Solar
Case Material
Titanium
Case Width
36mm
Case Thickness
10.5mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
180m
Dial Color
Cream
Jewels
26j
Frequency
21,600 bph
Power Reserve
66 hours
Year
1981

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