Seiko Cal. 6311 - 190

The 6311-190 is a sought-after Spring Drive piece from Seiko's golden era. It features a Cream dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-42308c5863c5]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Cream

Jewels

21j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1973

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