Seiko Cal. 5633 - 541

The Seiko 5633-541 represents an important milestone in Seiko's 1970 lineup. It features a Silver dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-c415c11284dc]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

25j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1970

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