Seiko Cal. 4478 - 706

The Seiko 4478-706 represents an important milestone in Seiko's 1987 lineup. It features a White dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-ae4613c6c04c]

Also known as: Monster, Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1987

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