Seiko Cal. 4537 - 643

The Seiko 4537-643 represents an important milestone in Seiko's 1995 lineup. It features a Silver dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-7a105cbcafe9]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1995

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