Seiko Cal. 4537 - 713

The Seiko 4537-713 represents an important milestone in Seiko's 1998 lineup. Powered by the 4537 caliber with 31j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-d72affee1685]

Also known as: Bellmatic, World Timer

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Silver

Jewels

31j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1998

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