Seiko Cal. 5660 - 433

The Seiko 5660-433 represents an important milestone in Seiko's 1969 lineup. It features a Black dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-e1ab0e6f6813]

Also known as: Monster, World Timer

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Black

Jewels

33j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1969

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