Seiko Cal. 4454 - 646

This Spring Drive model from 1997 features a 42mm Two-Tone case. It features a Green dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-39f9d786ed6e]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1997

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