Seiko Cal. 4550 - 383

The Seiko 4550-383 represents an important milestone in Seiko's 1970 lineup. It features a Black dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-a11e5654e859]

Also known as: Samurai, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Black

Jewels

34j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1970

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