Seiko Cal. 4534 - 166

The 4534-166 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4534 caliber with 19j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-dbe580077705]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

12.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

White

Jewels

19j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1975

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