Seiko Cal. 4485 - 550

Released in 1990, the Cal. 4485 with design code 550 was part of Seiko's domestic market collection. It features a Black dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-6c2ec41abe3c]

Also known as: Bellmatic, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

11.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

19j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1990

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