Seiko Cal. 5690 - 757

The Seiko 5690-757 represents an important milestone in Seiko's 1988 lineup. It features a Green dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-b2a3dc19a96f]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1988

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