Seiko Cal. 6655 - 903

The Seiko 6655-903 represents an important milestone in Seiko's 1978 lineup. It features a White dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-2783735cd308]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

8.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1978

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