Seiko Cal. 7031 - 377

The 7031-377 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Burgundy dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-105a1f0af01e]

Also known as: Tuna, UFO

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

25j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1985

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