Seiko Cal. 5231 - 614

The Seiko 5231-614 represents an important milestone in Seiko's 1968 lineup. It features a Black dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-d37f621933d4]

Also known as: Crown, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

9.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1968

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