Seiko Cal. 7172 - 387

The 7172-387 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 11.1mm profile, it sits comfortably on most wrists. [seikata-wm-9806445ae2da]

Also known as: Navigator, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

36j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1970

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