Seiko Cal. 0728 - 173

The 0728-173 is a sought-after Hand-Winding piece from Seiko's golden era. With its 21mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-aec6543698c5]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Cream

Jewels

22j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1999

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