Seiko Cal. 4423 - 277

The Seiko 4423-277 represents an important milestone in Seiko's 1968 lineup. It features a White dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-95cc7716d7d0]

Also known as: Sumo, Crown

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

45mm

Case Thickness

11.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

80m

Dial Color

White

Jewels

27j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1968

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