Seiko Cal. 7197 - 637

Seiko 7197-637

The 7197-637 is a sought-after Solar piece from Seiko's golden era. Powered by the 7197 caliber with 21j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-814d0300e6d5]

Also known as: Rally

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
38mm
Case Thickness
8.7mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
120m
Dial Color
Champagne
Jewels
21j
Frequency
28,800 bph
Power Reserve
38 hours
Year
1971

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