Seiko Cal. 4550 - 291

The 4550-291 is a sought-after Spring Drive piece from Seiko's golden era. It features a Navy dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-3824ce8def29]

Also known as: World Timer, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1970

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