Seiko Cal. 5671 - 377

The 5671-377 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-874fc2d30aff]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1998

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