Seiko Cal. 4456 - 623

The Seiko 4456-623 represents an important milestone in Seiko's 1988 lineup. It features a Black dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-59f6fc156e88]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

36mm

Case Thickness

11.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

Black

Jewels

29j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1988

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