Seiko Cal. 4455 - 656

The Seiko 4455-656 represents an important milestone in Seiko's 1977 lineup. It features a White dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-133b12c4ae47]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

37mm

Case Thickness

8.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

White

Jewels

36j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1977

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