Seiko Cal. 5663 - 141

The Seiko 5663-141 represents an important milestone in Seiko's 1974 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-3840a0657930]

Also known as: Helmet, Crown

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1974

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