Seiko Cal. 7163 - 312

Seiko 7163-312

The 7163-312 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-2c339b5c62ec]

Also known as: UFO, Sportsmatic

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
43mm
Case Thickness
12.4mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
140m
Dial Color
Navy
Jewels
20j
Frequency
21,600 bph
Power Reserve
56 hours
Year
1998

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