Seiko Cal. 6621 - 866

This Hand-Winding model from 1974 features a 44mm PVD Black case. It features a Silver dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-981adbee3e9e]

Also known as: Tuna, Arnie

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Silver

Jewels

31j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1974

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