Seiko Cal. 4539 - 957

The Seiko 4539-957 represents an important milestone in Seiko's 1991 lineup. The Fixed bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-77062a836f8d]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

200m

Dial Color

White

Jewels

32j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1991

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