Seiko Cal. 5666 - 190

The 5666-190 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-c7485270696c]

Also known as: Crown, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

8.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1975

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