Seiko Cal. 4478 - 309

Seiko 4478-309

The Seiko 4478-309 represents an important milestone in Seiko's 1993 lineup. It features a White dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-201e7507c763]

Also known as: Sumo, Silverwave

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
11.9mm
Lug Width
21mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
110m
Dial Color
White
Jewels
33j
Frequency
21,600 bph
Power Reserve
49 hours
Year
1993

Related Models

seikata-wm-201e7507c763