Seiko Cal. 5257 - 730

Seiko 5257-730

The 5257-730 is a sought-after Solar piece from Seiko's golden era. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-850e59594a38]

Also known as: Tuna, Baby Tuna

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
14.0mm
Lug Width
19mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
90m
Dial Color
Black
Jewels
27j
Frequency
36,000 bph
Power Reserve
72 hours
Year
1973

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seikata-wm-850e59594a38