Seiko Cal. 6337 - 405

This Spring Drive model from 1991 features a 40mm PVD Black case. It features a Navy dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-a3913911c30c]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1991

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