Seiko Cal. 7031 - 377

The 7031-377 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Green dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-13f2739fd5a7]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1994

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