Seiko Cal. 0728 - 121

Seiko 0728-121

The 0728-121 is a sought-after Automatic piece from Seiko's golden era. Powered by the 0728 caliber with 22j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-b6bdeb7c04e4]

Also known as: Turtle, Sportsmatic

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
42mm
Case Thickness
12.3mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Silver
Jewels
22j
Frequency
28,800 bph
Power Reserve
53 hours
Year
1966

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