Seiko Cal. 6261 - 560

The Seiko 6261-560 represents an important milestone in Seiko's 1965 lineup. It features a Navy dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-a439f90b8e4a]

Also known as: Sumo, Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1965

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