Seiko Cal. 6163 - 628

The 6163-628 is a sought-after Spring Drive piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-6019b5e9db77]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

32j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1991

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