Seiko Cal. 6156 - 521

This Spring Drive model from 1993 features a 40mm Gold-Plated case. With its 18mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-40a92fdd0a41]

Also known as: Navigator, Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1993

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