Seiko Cal. 6637 - 810

Seiko 6637-810

The 6637-810 is a sought-after Kinetic piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-3ddea3a237db]

Also known as: Bullhead, Navigator

Specifications

Movement
Kinetic
Case Material
Stainless Steel
Case Width
46mm
Case Thickness
8.8mm
Lug Width
19mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
170m
Dial Color
Blue Sunburst
Jewels
18j
Frequency
36,000 bph
Power Reserve
41 hours
Year
1969

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