Seiko Cal. 7121 - 503

This Spring Drive model from 1991 features a 42mm Hardlex-Coated Steel case. It features a Green dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-30420d401589]

Also known as: Panda, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

24j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1991

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