Seiko Cal. 4531 - 150

Released in 1968, the Cal. 4531 with design code 150 was part of Seiko's domestic market collection. It features a Burgundy dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-5c5679f7750d]

Also known as: Sumo, Arnie

Specifications

Movement

Solar

Case Material

Titanium

Case Width

35mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

27j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1968

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