Seiko Cal. 4537 - 748

This Automatic model from 1987 features a 44mm Two-Tone case. Powered by the 4537 caliber with 20j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-013afdfe28fb]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1987

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