Seiko Cal. 5687 - 161

This Hand-Winding model from 1978 features a 45mm PVD Black case. It features a Green dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-fe2a2e3cafcc]

Also known as: Tuna, Pogue

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Green

Jewels

35j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1978

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