Seiko Cal. 6170 - 727

Seiko 6170-727

The 6170-727 is a sought-after Spring Drive piece from Seiko's golden era. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-101bf9eb84aa]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
12.8mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
90m
Dial Color
Silver
Jewels
31j
Frequency
21,600 bph
Power Reserve
45 hours
Year
1973

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