Seiko Cal. 6138 - 321

Released in 1969, the Cal. 6138 with design code 321 was part of Seiko's domestic market collection. It features a Black dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-ea792bedee54]

Also known as: Bellmatic, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Black

Jewels

30j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1969

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