Seiko Cal. 4561 - 238

The Seiko 4561-238 represents an important milestone in Seiko's 1970 lineup. It features a Black dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-2979b895eeca]

Also known as: Helmet, Bellmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1970

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