Seiko Cal. 6653 - 387

The Seiko 6653-387 represents an important milestone in Seiko's 1986 lineup. It features a Black dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-d113ee1a0f92]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

9.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1986

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