Seiko Cal. 6613 - 363

This Automatic model from 1978 features a 38mm Hardlex-Coated Steel case. Powered by the 6613 caliber with 21j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-a7bccbf0eec2]

Also known as: Monster, Panda

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1978

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