Seiko Cal. 0728 - 301

Seiko 0728-301

The 0728-301 is a sought-after Solar piece from Seiko's golden era. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-570c8a7d9529]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
13.2mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
170m
Dial Color
Navy
Jewels
20j
Frequency
36,000 bph
Power Reserve
69 hours
Year
1973

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seikata-wm-570c8a7d9529