Seiko Cal. 5648 - 156

The 5648-156 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-9db8a07aae5b]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

8.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1989

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