Seiko Cal. 6637 - 733

Seiko 6637-733

The 6637-733 is a sought-after Solar piece from Seiko's golden era. It features a Navy dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-bab8e6cafc75]

Also known as: Silverwave, Navigator

Specifications

Movement
Solar
Case Material
PVD Black
Case Width
43mm
Case Thickness
12.6mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
80m
Dial Color
Navy
Jewels
26j
Frequency
36,000 bph
Power Reserve
58 hours
Year
1974

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