Seiko Cal. 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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