Seiko Cal. 5658 - 727

The Seiko 5658-727 represents an important milestone in Seiko's 1984 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-0e08b5da049e]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1984

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